Some subscribers to MathEdCC might be interested in a recent post "Would a Carbon Tax Save Life on Planet Earth?" [Hake (2013)]. The abstract reads:

**************************************ABSTRACT: James Hansen, former head of the NASA Goddard Institute for Space Studies, in "The Courage to Fight Climate Change" at <http://bit.ly/12djtSf> wrote: "We must have a simple, honest, across-the-board carbon fee collected from the fossil fuel companies at the small number of domestic mines and ports of entry. All of that money should be distributed to the public-100 percent of it-with equal amounts going to all legal residents."

REFERENCES [URL's shortened by <http://bit.ly/> and accessed on 03 June 2013.]Hake, R.R. 2013. "Would a Carbon Tax Save Life on Planet Earth?" online on the OPEN! Net-Gold archives at <http://yhoo.it/16ECfUn>. Post of 03 Jun 2013 12:34:27-0700 to AERA-L and Net-Gold. The abstract and link to the complete post are being distributed to various discussion lists and are also on my blog "Hake'sEdStuff" at <http://bit.ly/15zIncu>.